JP2006090410A - Roller bearing cage assembling device and its method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To press a pin into any kind of roller bearing cage in an easily adaptable manner while quickly and accurately pressing the pin into an annular side plate of the roller bearing cage. <P>SOLUTION: In this roller bearing cage assembling device 10, a pin press-in mechanism 30 is provided separately from a work residing plate 20. It can be horizontally aligned to the work residing plate 20 with the movement of a base 32 following the rotation of a caster 31 while adjusting the heights and angles of an upper side press-in tool 39 and a lower side press-in tool 42 to the annular side plates 2, 3, respectively, on the work residing plate 20 with a C-shaped block 35 being moved up and down by a shifter 44 and rocked around an axis 36. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an assembly apparatus and an assembly method for a roller bearing retainer in which a plurality of rollers are sandwiched between a pair of opposed annular side plates so as to be freely rollable via pins.

  In general industrial fields, roller bearings are widely used as rolling bearings used in facilities that generate high load loads because of their large load capacity.

  That is, conventionally, a plurality of rollers are sandwiched between a pair of opposed annular side plates via a pin, respectively, and the distance between rollers adjacent to each other in the circumferential direction of the cage is reduced so that the number of rollers that can be incorporated is increased. A pin-type rolling bearing having an increased load capacity by increasing the number is known (for example, see Patent Document 1). As a method for connecting and fixing each pin and the annular side plate, screw fastening, various types of welding, and the like can be given.

  FIG. 23 is a cross-sectional view of an essential part showing a pin type rolling bearing disclosed in Patent Document 1. As shown in FIG.

  As shown in FIG. 23, the pin type rolling bearing 100 is configured by sandwiching a plurality of hollow rollers 103 via a pin 104 between a pair of opposing side plates 101 and 102, respectively. In the pin type rolling bearing 100, each pin 104 is inserted into the hollow roller 103 and rotatably supported by the hollow roller 103, and both ends are connected and fixed to the side plates 101 and 102, respectively.

That is, one end portion (right end portion in FIG. 23) of each pin 104 is screwed into a tapered screw hole 101a formed in the side plate 101 with a screw portion 104a formed on the tapered outer peripheral surface. By this, it is connected and fixed to the side plate 101. Further, the other end of each pin 104 (the left end in FIG. 23) is welded to the side plate 102 in a state where the pin 104 is fitted into a tapered welding hole 102a formed in the side plate 102 via a taper bush 105. It is connected and fixed by
Japanese Patent Laid-Open No. 7-190049 (pages 2 and 3, FIG. 1)

  In the conventional pin type rolling bearing 100 described above, one end portion (right end portion in FIG. 23) of each pin 104 is connected and fixed to the side plate 101 by screwing by screw action, and each pin 104 has a tapered shape. A threaded portion 104 a is formed on the outer peripheral surface of the outer peripheral surface, and a tapered screw hole 101 a is formed in the side plate 101.

  For this reason, it is inevitable that the screw portion 104a of each pin 104 and the screw hole 101a of the side plate 101 will vary in the starting position and depth of the thread, and the tightening torque of the screw portion 104a will also vary. Thus, there is a problem that the assembled state of each pin 104 with respect to the side plate 101 varies.

  Further, the other end of each pin 104 (the left end in FIG. 23) is welded to the side plate 102 in a state of being fitted to a tapered welding hole 102a formed in the side plate 102 via a taper bush 105. It is connected and fixed by

  For this reason, the other end of each pin 104 undergoes thermal expansion due to heat accompanying welding and contracts after a lapse of time. If the assembly position in the axial direction of each pin 104 is different, the temperature condition also changes for each pin 104, so that the compression or tensile stress generated in each pin 104 also differs. These compressive or tensile stresses have a problem that they are not released but become residual stresses when the pins 104 are connected and fixed to the side plates 101 and 102.

  Residual stress causes distortion in the entire cage, adversely affects the rotational accuracy during operation of the rolling bearing 100, and when it occurs in the tensile direction, for example, accelerates the progress of cracks caused by fatigue, There is a possibility that damage will occur earlier.

  Therefore, a pin-type cage has been devised to solve the problem of connecting and fixing the pins 104 to the side plates 101 and 102 as described above.

  The pin type cage is provided with a hole having a tightening margin between the annular side plate and a pin end portion, and the pins are connected to and fixed to the annular side plate by pressing the pins into the annular side plate.

  However, many roller bearings employing pin type cages are large in size and have a wide variety of dimensions. For example, the inner diameter of the roller bearing is 300 to 2000 mm, the outer diameter is 600 to 2300 mm, and the weight is 100 to 1000 kg.

  Therefore, when the pins are press-fitted into the annular side plate of the pin type cage, it is very difficult to move or change the posture of the annular side plate of the pin type cage with respect to the pin press-fitting jig or press-fitting device. . For this reason, there has been a problem that a large amount of labor and time are required for the press-fitting work of the pins.

  The shape of the roller includes a cylindrical shape and a conical shape. In the tapered roller bearing using the conical roller, it is necessary to press-fit each pin along the inclined direction with respect to the bearing center. The inclination angle varies depending on the type of bearing.

  However, when the roller bearing is a large one as described above, it is very difficult to move or change the posture of the annular side plate of the pin type cage with respect to the pin press-fitting jig or press-fitting device as described above. Have difficulty. For this reason, depending on the type of the bearing, each pin cannot be press-fitted along the inclined direction with respect to the center of the bearing, and there is a problem that it is not possible to cope with various types of roller bearings.

  The present invention has been made in view of the above circumstances, and can quickly and surely press-fit a pin into each annular side plate and roller, and can hold various types of roller bearings such as a cylindrical roller bearing or a tapered roller bearing. An assembly device and assembly method for a roller bearing retainer that can easily accommodate pin press-fitting of a roller, and that can easily accommodate pin press-fitting of roller bearing retainers of various sizes. The purpose is to do.

  1) An assembly apparatus for a roller bearing cage according to the present invention is a roller bearing cage in which a plurality of rollers of a roller bearing are rotatably supported via a pin between a pair of opposed annular side plates. It is an assembly apparatus, a workpiece mounting table for mounting each annular side plate and rollers, and a ring mounting plate provided separately from the workpiece mounting table, from one annular side plate side mounted on the workpiece mounting table to the other annular side plate side And a pin press-fitting means for press-fitting the pins through the rollers.

  In this roller bearing retainer assembly apparatus, the pin press-fitting means is separate from the work mounting table, so that the position of the pin press-fitting means relative to the work mounting table can be quickly and easily changed. As a result, a roller bearing cage assembling apparatus capable of quickly and surely press-fitting a pin into the roller bearing is obtained.

  2) The roller bearing cage assembling apparatus according to the present invention is the roller bearing cage assembling apparatus according to the above 1), characterized in that the pin press-fitting means is displaceable along the pin pressing direction. To do.

  In this roller bearing cage assembling apparatus, the pin press-fitting means is mounted on the workpiece mounting table by being able to adjust the relative position with respect to each annular side plate mounted on the workpiece mounting table. The relative position of each annular side plate can be adjusted along the pin press-fitting direction, and a roller bearing retainer that can quickly and easily respond to pin press-fitting of various types of roller bearing retainers. An assembly device is obtained.

  3) The roller bearing retainer assembling apparatus of the present invention is the roller bearing retainer assembling apparatus according to 1) or 2) described above, wherein the pin press-fitting means is disposed on one annular side plate side, and the pin is press-fitted. And a second press-fitting jig that is disposed on the other annular side plate side and receives a pin press-fitting load by the first press-fitting jig.

  In this roller bearing retainer assembling apparatus, the pin press-fitting means composed of the first press-fitting jig and the second press-fitting jig adjusts the relative position with respect to each annular side plate placed on the work placing table. It is possible to adjust the relative position of each annular side plate mounted on the workpiece mounting table along the pin press-fitting direction. Thus, an assembly apparatus for a roller bearing retainer that can be quickly and easily handled is obtained.

  4) The roller bearing retainer assembling apparatus according to the present invention is the roller bearing retainer assembling apparatus described in 2) or 3) above, wherein the pin press-fitting means is in a direction substantially perpendicular to the pin press-fitting direction. It is characterized in that it can swing around an axis along it.

  In this roller bearing retainer assembling apparatus, the pin press-fitting means can swing around an axis along a direction substantially orthogonal to the press-fitting direction of the pin, so that a cylindrical roller bearing or a tapered roller bearing can be used. An assembly apparatus for a roller bearing retainer that can quickly and easily accommodate pin press-fitting of various types of roller bearing retainers can be obtained.

  5) The roller bearing retainer assembling apparatus according to the present invention is the roller bearing retainer assembling apparatus according to 1), 2), 3) or 4) described above, wherein the work placing table is mounted on the work placing table. Three or more work support members capable of rolling are arranged so that the rolling shaft extends along the radial direction from the center of the work mounting table, and each work support member has an annular side plate on the work mounting table. The side plate is supported so as to be movable in the annular direction.

  In this roller bearing cage assembling apparatus, three or more workpiece support members each support the annular side plate so as to be movable in the annular direction of the annular side plate on the workpiece mounting table. It is easy to move each annular side plate in the annular direction at the time of press-fitting, and an assembly apparatus for a roller bearing cage capable of successively press-fitting pins can be obtained.

  6) The roller bearing retainer assembling apparatus according to the present invention is the roller bearing retainer assembling apparatus according to 5), wherein each work support member is arbitrarily changed in arrangement and number on the work mounting table. It is possible.

  In this roller bearing retainer assembly apparatus, each work support member can be arbitrarily changed in arrangement and number on the work mounting table, so that various sizes and weights of various sizes and weights can be varied. An assembly device for a roller bearing retainer that can quickly and easily cope with pin press-fitting of various types of roller bearing retainers can be obtained.

  7) The roller bearing retainer assembly method of the present invention is a roller bearing retainer in which a plurality of rollers of a roller bearing are rotatably held between a pair of opposed annular side plates via pins. In the assembly method, from one annular side plate placed on the work placing table to the other annular side plate side, the pins are inserted through the rollers by pin press-fitting means. After the shim member is interposed between the annular side plate and the pin, the shim member is pulled out after the pin is press-fitted, thereby securing a predetermined gap between the annular side plate and each roller.

  In this roller bearing retainer assembly method, when a pin is press-fitted, a shim member is interposed between the annular side plate and the shim member is removed after the pin is press-fitted, so that the annular side plate and each roller are interposed. A method for assembling a roller bearing cage in which a predetermined gap is secured is obtained.

  8) The roller bearing cage assembly method of the present invention is the roller bearing cage assembly method according to 7), wherein the thickness of the shim member is smaller than the appropriate value of the gap between the annular side plate and each roller. It is characterized by that.

  In this roller bearing retainer assembling method, the thickness of the shim member is smaller than the appropriate value of the gap between the annular side plate and each roller, thereby ensuring ease of extraction when the shim member is extracted after the pin is press-fitted. A method for assembling the roller bearing cage is obtained.

  According to the roller bearing cage assembling apparatus and the assembling method of the present invention, the pins can be quickly and surely press-fitted into the annular side plate of the roller bearing cage, and various types of roller bearing cage pins can be used. It can easily cope with press-fitting.

  Hereinafter, the present invention will be described with reference to illustrated embodiments.

  FIG. 1 is a side view showing a roller bearing cage assembling apparatus according to an embodiment of the present invention, and FIG. 2 is a view of the roller bearing cage assembling apparatus of FIG. 3 and 4 are plan views of the roller bearing cage assembling apparatus of FIG. 1, and FIG. 4 shows a state when assembling a roller bearing cage having a larger diameter than that of FIG. 5 is a plan view showing a roller bearing retainer assembled by the roller bearing retainer assembling apparatus of FIG. 1, FIG. 6 is a sectional view taken on line BB of FIG. 5, and FIG. 7 is for the roller bearing of FIG. It is a principal part enlarged view of a holder | retainer. 8 and 9 are cross-sectional views taken along the line CC of FIG. 7, respectively. FIG. 8 shows a state at the time of pin press-fitting, and FIG. 9 shows a state after the pin press-fitting. 10 is a plan view showing pins of the roller bearing retainer of FIG. 5, FIG. 11 is a plan view showing a shim member of the roller bearing retainer of FIG. 5, and FIG. 12 is a sectional view taken along the line DD of FIG. It is.

  1 to 4, the roller bearing retainer assembling apparatus 10 of the present embodiment press-fits the pins 5 into the respective annular side plates 2 and 3 and the respective cylindrical rollers 4 of the cylindrical roller bearing retainer 1. Is. That is, the roller bearing cage assembling apparatus 10 is configured such that each pin is inserted by the pin press-fitting mechanism 30 in a state where the annular side plates 2 and 3 of the cylindrical roller bearing cage 1 and the cylindrical roller 4 are placed on the workpiece mounting table 20. 5 is press-fitted into each of the annular side plates 2 and 3 and each of the cylindrical rollers 4 in the direction of arrow F in FIG.

  1, 5 and 6, the cylindrical roller bearing retainer 1 includes a pair of annular side plates 2 and 3 (hereinafter referred to as an upper annular side plate 2 and a lower annular side plate) facing vertically in FIG. 1. 3), a plurality of cylindrical rollers 4 are respectively slidably pinched via pins 5. Each of the annular side plates 2 and 3 is provided with a large number of pin press-fitting holes 2a and 3a along the annular direction, and each of the annular side plates 2 and 3 has a cylindrical roller 4 in the pin press-fitting holes 2a and 3a. Both end portions (both left and right end portions in FIG. 6) of the pin 5 passing through the through hole 4a along the axial direction (left and right direction in FIG. 6) are fitted by press fitting.

  The outer diameter of the left end portion 5 a of the pin 5 in FIG. 6 is smaller than the outer diameter of the right end portion 5 b in FIG. 6 and smaller than the inner diameter of the through hole 4 a of the cylindrical roller 4. Accordingly, the pin 5 is inserted toward the left in FIG. 6 from the pin press-fitting hole 2a of the upper annular side plate (right annular side plate in FIG. 6) 2, and the left end portion 5a in FIG. 6 is pressed into the pin press-fitting hole 3a of the lower annular side plate (left annular side plate in FIG. 6) through the through hole 4a, and at the same time, the right end 5b in FIG. It is press-fitted into the hole 2a.

  Referring to FIGS. 1 to 4 again, the work mounting table 20 includes three or more work support rollers 21 that can roll on the work mounting table 20, and the rolling shaft 21 a extends in the radial direction from the center of the work mounting table 20. It is arranged along. Each workpiece support roller 21 supports the annular side plates 2 and 3 and the cylindrical roller 4 of the cylindrical roller bearing retainer 1 on the workpiece mounting table 20 so as to be pivotable in the annular direction of the annular side plates 2 and 3. . Accordingly, the annular side plates 2 and 3 of the cylindrical roller bearing retainer 1 can be arbitrarily rotated in the annular direction, and the annular side plates 2 and 3 are rotated along the annular direction of the annular side plates 2 and 3. The pins 5 can be sequentially press-fitted into the pin press-fitting holes 2a and 3a arranged side by side, and the time required for pin press-fitting can be shortened.

  That is, each work support roller 21 is supported by the roller base 23 attracted by the magnet holder 22 on the work mounting table 20 so as to be rotatable about the rolling shaft 21a. A guide step portion 21 b is formed on the outer peripheral surface of each work support roller 21, and the guide step portion 21 b abuts on the corners of the annular side plates 2, 3 of the cylindrical roller bearing cage 1. 3 is positioned. Thereby, the position shift etc. at the time of turning movement of the annular side plates 2 and 3 supported on each work support roller 21 are prevented.

  Each work support roller 21 can be arbitrarily changed in arrangement and number on the work mounting table 20 in accordance with, for example, the outer diameter and weight of the cylindrical roller bearing retainer 1.

  That is, when the outer diameter of the cylindrical roller bearing retainer 1 is small as shown in FIG. 3, the work support rollers 21 on the work mounting table 20 are arranged at a narrow interval in the circumferential direction, and the cylindrical roller bearing is provided. When the outer diameter of the retainer 1 is large as shown in FIG. 4, the work support rollers 21 on the work mounting table 20 are arranged at wide intervals in the circumferential direction. Further, when the cylindrical roller bearing retainer 1 is large and there is a concern about bending due to its own weight, it is possible to increase the number of work support rollers 21 and arrange them at a narrow interval in the circumferential direction.

  The pin press-fitting mechanism 30 is provided separately from the work mounting table 20, and the pin press-fitting mechanism 30 is provided on each annular side plate 2, 3 and cylindrical roller 4 of the cylindrical roller bearing retainer 1 mounted on the work mounting table 20. 5 is press-fitted through the cylindrical rollers 4 from the upper annular side plate 2 side to the lower annular side plate 3 side.

  That is, in the pin press-fit mechanism 30, a bracket 33 is supported on a base 32 movable by a caster 31 so as to be movable up and down via an upper and lower slide guide 34, and a C-shaped block 35 is supported on the bracket 33. The pin 5 is supported so as to be swingable about a shaft 36 that extends along a direction substantially orthogonal to the press-fitting direction of the pin 5 (the direction of arrow F in FIG. 1). The center of gravity of the C-shaped block 35 is a position indicated by reference numeral 37.

  An upper press-fit jig 39 is supported on the upper arm portion 38 of the C-shaped block 35 so as to be movable up and down by an actuator 40, and a lower press-fit jig 42 is supported on the lower arm portion 41 of the C-shaped block 35. Is fixed at a position facing the upper press-fitting jig 39. The upper press-fitting jig 39 is moved up and down by an actuator 40 such as a hydraulic or electric cylinder to press-fit the pins 5 into the respective annular side plates 2 and 3 and the cylindrical roller 4 of the cylindrical roller bearing retainer 1 and The side press-fit jig 42 supports the lower annular side plate 3 and receives a pin press-fit load from the upper press-fit jig 39.

  Referring to FIGS. 8 to 12, when the pins are press-fitted by the upper press-fitting jig 39 and the lower press-fitting jig 42, the upper annular side plate 2 of the cylindrical roller bearing retainer 1 and the end faces of the cylindrical rollers 4 (the upper surface in FIG. ), A shim member 43 is interposed every time the pin press-fitting operation by the upper press-fitting jig 39 is performed.

  That is, the shim member 43 is inserted between the upper annular side plate 2 of the cylindrical roller bearing retainer 1 and the end surface of the cylindrical roller 4 before the pins are pressed by the upper press-fitting jig 39 and the lower press-fitting jig 42. By pulling out after pin press-fitting, an appropriate gap (for example, 1 mm) is secured between the upper annular side plate 2 of the cylindrical roller bearing retainer 1 and the end face of the cylindrical roller 4.

  The thickness of the shim member 43 is smaller by a predetermined amount than the appropriate value of the gap between the upper annular side plate 2 of the cylindrical roller bearing retainer 1 and the end face of the cylindrical roller 4, and the difference is the amount by which the pin 5 is compressed by press fitting. It is set to be approximately equal. That is, the thickness of the lower annular side plate 3 is a, the axial length of the cylindrical roller 4 is b, the thickness of the shim member 43 is c, the thickness of the upper annular side plate 2 is d, and the axial length of the pin 5 is Where e is a + b + c + d <e. Thereby, the extraction operation of the shim member 43 after the pin press-fitting is facilitated.

  The shim member 43 is provided with a notch 43a for avoiding the pin 5 and a hole 43b that is caught during the extraction operation.

  The C-type block 35 is moved up and down the upper arm portion 38 and the lower arm portion 41 by the lifting and lowering operation of the bracket 33 accompanying the operation of the lifting handle 45 of the lifting and lowering device 44, and the upper press-fitting jig 39 and the lower press-fitting jig 42. 1 is displaced along the vertical direction of the pin 5 in FIG. 1, and the positions of the upper arm portion 38 and the lower arm portion 41 are fixed as the brake lever 46 is operated.

  Accordingly, the upper press-fitting jig 39 and the lower press-fitting jig 42 are positioned relative to the annular side plates 2 and 3 and the cylindrical rollers 4 placed on the work placing table 20 along the vertical direction in FIG. Can be adjusted. Thereby, the change of the height position of the pin press-fit position accompanying the change of the kind and size of the roller bearing cage 1 can be dealt with quickly and easily.

  Further, the C-type block 35 is brought into a swingable state or a fixed state around the shaft 36 by the operation of the rotary clamp lever 47, and in the swingable state, the C-type block 35 is swung along with the operation of the handle 48. The swing angle of the C-shaped block 35 is visible with an angle meter 49. As the C-type block 35 swings, the upper press-fitting jig 39 and the lower press-fitting jig 42 are shown in FIG. 1 with respect to the annular side plates 2 and 3 and the cylindrical rollers 4 placed on the work placing table 20 in FIG. It is possible to adjust the relative position along the direction inclined with respect to the upper and lower sides.

  Therefore, the press-fitting direction of the pin 5 can be arbitrarily changed (see FIGS. 16, 19, and 22). The pin press-fitting of the tapered roller bearing retainer as shown in FIGS. By using it together with the swinging of the C-shaped block 35 around the shaft 36, it is possible to cope with it easily and quickly.

  A suspension fitting 50 is provided on the C-shaped block 35. A chain block, a hoist, a balancer, and the like for moving the assembly apparatus 10 are connected to the hanging metal fitting 50.

  Next, a method for assembling the roller bearing cage will be described.

  First, the annular side plates 2 and 3 and the cylindrical roller 4 of the cylindrical roller bearing retainer 1 are placed on the workpiece mounting table 20. Next, the pin 5 is inserted into each annular side plate 2, 3 and the cylindrical roller 4 from the upper annular side plate 2 side to the lower annular side plate 3 side by the pin press-fitting mechanism 30.

  At this time, the pin press-fitting mechanism 30 is aligned horizontally with respect to the workpiece mounting table 20 by the horizontal movement of the base 32 accompanying the rotation of the casters 31, and the C-type block 35 is moved up and down by the elevating device 44. As the C-shaped block 35 swings around the shaft 36, the height position and angle of the upper press-fitting jig 39 and the lower press-fitting jig 42 with respect to the annular side plates 2 and 3 on the workpiece mounting table 20 are adjusted. Is done.

  Each time the pin is pressed by the pin press-fitting mechanism 30, a shim member 43 is interposed between the upper annular side plate 2 and the cylindrical roller 4, and the shim member 43 is extracted after the pin is press-fitted. Thereby, a predetermined clearance is secured between the upper annular side plate 2 of the cylindrical roller bearing retainer 1 and the end face of the cylindrical roller 4.

  When the pin 5 is press-fitted, the thrust of the upper press-fitting jig 39 is a load necessary for pin press-fitting, that is, the outer diameter surfaces of the ends 5a and 5b of the pin 5 and the inner diameters of the pin press-fitting holes 2a and 3a of the annular side plates 2 and 3 It is sufficiently larger than the frictional force with the surface. Therefore, at the time of pin press-fitting, the pin 5 is compressed in the axial direction by the thrust of the upper press-fitting jig 39. When the upper press-fitting jig 39 is separated from the pin 5 after the pin press-fitting is completed, the compression load of the pin 5 is released and the length of the pin 5 is restored.

  At this time, the distance between the upper annular side plate 2 and the lower annular side plate 3 is caused by the frictional force between the outer diameter surfaces of the end portions 5a and 5b of the pin 5 and the inner diameter surfaces of the pin press-fitting holes 2a and 3a of the annular side plates 2 and 3. It spreads and becomes larger than the thickness of the shim member 43. As a result, the shim member 43 is not sandwiched between the upper annular side plate 2 and the cylindrical roller 4 and is easily extracted.

  13 is a side view showing a state where the cylindrical roller bearing retainer shown in FIGS. 14 and 15 is applied to the roller bearing retainer assembling apparatus of FIG. 1, and FIG. 14 is a perspective view of the cylindrical roller bearing retainer. FIG. 15 is a cross-sectional view taken along line EE in FIG.

  The cylindrical roller bearing retainer 60 shown in FIGS. 14 and 15 cannot be incorporated in the outer ring 65 of the cylindrical roller bearing when the annular side plates 61 and 62, the cylindrical roller 63, and the pin 64 are assembled. Therefore, the cylindrical roller bearing retainer 60 is press-fitted with the pin 64 in a state of being incorporated in the outer ring 65 before the pin press-fitting.

  That is, as shown in FIG. 13, the roller bearing cage assembling apparatus 10 has a cylindrical roller bearing cage 60 in which the annular side plates 61 and 62 and the cylindrical roller 63 are set on the inner peripheral side of the outer ring 65. The pin 64 is press-fitted on the inner peripheral side of the outer ring 65.

  16 is a side view showing a state in which the tapered roller bearing cage shown in FIGS. 17 and 18 is applied to the roller bearing cage assembling apparatus of FIG. 1, and FIG. 17 is a perspective view of the tapered roller bearing cage. FIG. 18 is a plan view and FIG. 18 is a cross-sectional view taken along line GG in FIG.

  The tapered roller bearing retainer 70 shown in FIGS. 17 and 18 cannot be incorporated into the inner ring 75 of the tapered roller bearing when the annular side plates 71 and 72, the tapered rollers 73 and the pins 74 are assembled. Accordingly, the tapered roller bearing retainer 70 is press-fitted with the pin 74 in a state of being incorporated in the inner ring 75 before the pin press-fitting.

  That is, as shown in FIG. 16, the roller bearing cage assembling apparatus 10 includes an inner ring mounted on a tapered roller bearing cage 70 in which annular side plates 71 and 72 and a tapered roller 73 are set on the outer peripheral side of the inner ring 75. The pin 74 is press-fitted on the outer peripheral side of 75. At this time, the C-shaped block 35 is swung around the shaft 36, whereby the angles of the upper press-fitting jig 39 and the lower press-fitting jig 42 are adjusted in accordance with the axial direction of the tapered roller 73, and the pin The press-fitting direction is inclined to the left in FIG. 16 with respect to the vertical direction. Thereby, the pin press-fit to the tapered roller bearing retainer 70 is performed quickly and easily.

  19 is a side view showing a state where the tapered roller bearing cage shown in FIGS. 20 and 21 is applied to the roller bearing cage assembling apparatus of FIG. 1, and FIG. 20 is a perspective view of the tapered roller bearing cage. FIG. 21 is a plan view, and FIG. 21 is a cross-sectional view taken along line HH in FIG.

  The tapered roller bearing retainer 80 shown in FIGS. 20 and 21 can be incorporated into the inner ring (not shown) of the tapered roller bearing in a state where the annular side plates 81 and 82, the tapered rollers 83 and the pins 84 are assembled. is there. Therefore, the tapered roller bearing retainer 80 is press-fitted with a pin 84 before being incorporated into the inner ring, as in the case of the cylindrical roller bearing retainer 1 shown in FIGS.

  That is, the roller bearing cage assembling apparatus 10 press-fits the pin 84 into the annular side plates 81 and 82 and the tapered roller 83 of the tapered roller bearing cage 80 as shown in FIG. At this time, the C-shaped block 35 is swung around the shaft 36, whereby the angles of the upper press-fitting jig 39 and the lower press-fitting jig 42 are adjusted in accordance with the axial direction of the tapered roller 83, and the pin The press-fitting direction is inclined to the left in FIG. 19 with respect to the vertical direction. Thereby, the pin press-fit to the tapered roller bearing retainer 80 is performed quickly and easily.

  22 is a side view showing an assembly apparatus for a roller bearing retainer set in a state where the large diameter side and the small diameter side of the tapered roller of the tapered roller bearing retainer are turned upside down from the case shown in FIG. It is.

  A tapered roller bearing retainer 90 set in the roller bearing retainer assembling apparatus 10 shown in FIG. 22 press-fits a pin 92 from the large diameter side (upper side in FIG. 22) of the tapered roller 91. Therefore, the tapered roller bearing retainer 90 is placed on the work placing table 20 of the assembling apparatus 10 in the state shown in FIG. 22 which is upside down from the case shown in FIG.

  As shown in FIG. 22, the roller bearing cage assembling apparatus 10 press-fits the pins 92 into the annular side plates 93 and 94 and the tapered rollers 95 of the tapered roller bearing cage 90. At this time, the C-shaped block 35 is swung around the shaft 36 in the direction opposite to that in FIG. 19, so that the angles of the upper press-fitting jig 39 and the lower press-fitting jig 42 are in the axial direction of the tapered roller 95. The pin press-fitting direction is inclined to the right side in FIG. 22 with respect to the vertical direction. Thereby, the pin press-fit to the tapered roller bearing retainer 90 is performed quickly and easily.

  As described above, according to the above-described embodiment, in the roller bearing retainer assembling apparatus 10, the pin press-fitting mechanism 30 is provided separately from the work mounting table 20, and the base 32 is rotated as the caster 31 rotates. By moving, it can be aligned horizontally with respect to the workpiece mounting table 20, and with the vertical movement of the C-type block 35 by the lifting device 44 and the swinging of the C-type block 35 around the shaft 36, The height position and angle of the upper press-fitting jig 39 and the lower press-fitting jig 42 with respect to the respective annular side plates 2 and 3 on the workpiece mounting table 20 can be adjusted.

  Accordingly, the pin press-fitting mechanism 30 can be moved horizontally and quickly, and the horizontal position of the pin press-fitting mechanism 30 with respect to the annular side plates 2 and 3 on the work table 20 can be changed quickly and easily. it can. Further, the press-fitting direction of the pin 5 by the pin press-fitting mechanism 30 can be changed quickly and easily, and the pin 5 can be press-fitted quickly and easily in any case of a cylindrical roller bearing or a tapered roller bearing. it can.

  As a result, the pin 5 can be quickly and surely press-fitted into each of the annular side plates 2 and 3 and the cylindrical roller 4 of the roller bearing retainer 1, and various types of roller bearings such as a cylindrical roller bearing or a tapered roller bearing. It is possible to respond quickly and easily to the press-fitting of the retainer pin. Furthermore, it is possible to quickly and easily cope with pin press-fitting of various types of roller bearing cages of different sizes and weights such as large roller bearings.

  Further, a shim member 43 is interposed between the upper annular side plate 2 of the roller bearing retainer 1 and the end face of the cylindrical roller 4 every time the pin press-fitting mechanism 30 presses the pin. Accordingly, the gap between the upper annular side plate 2 and the end face of the cylindrical roller 4 can be accurately set to a predetermined value, and the shim member 43 can be easily pulled out after the pin press-fitting, thereby ensuring good workability. be able to.

  Further, on the workpiece mounting table 20, three or more workpiece support rollers 21 that can roll on the workpiece mounting table 20 are arranged so that the rolling shaft 21 a extends along the radial direction from the center of the workpiece mounting table 20. . Each work support roller 21 supports the respective annular side plates 2 and 3 and the cylindrical roller 4 of the cylindrical roller bearing retainer 1 so as to be pivotable in the annular direction of each annular side plate 2 and 3 on the work mounting table 2. To do.

  Accordingly, the annular side plates 2 and 3 and the cylindrical roller 4 of the cylindrical roller bearing retainer 1 can be arbitrarily rotated in the annular direction of the annular side plates 2 and 3, and the annular direction of the annular side plates 2 and 3 at the time of pin press-fitting. Can be easily rotated. Accordingly, the pins 5 can be sequentially press-fitted into the pin press-fitting holes 2a and 3a arranged along the annular direction of the annular side plates 2 and 3 while rotating the annular side plates 2 and 3, The time required for press-fitting can be shortened.

  In addition, each work support roller 21 can arbitrarily change the arrangement and number of parts on the work mounting table 20, so that the work support roller 21 can support the work according to the outer diameter and weight of the roller bearing cage 1. The arrangement and number of rollers 21 can be changed.

  Thereby, it is possible to quickly and easily cope with pin press-fitting of various types of roller bearing cages having different sizes and weights such as large roller bearings.

  The roller bearing cage assembling apparatus and the assembling method obtained by the present invention are suitably used for assembling a roller bearing cage that requires high rotational performance and a large load capacity.

It is a side view which shows the assembly apparatus of the roller bearing retainer which is one Embodiment of this invention. It is an A arrow directional view of the assembly apparatus of the roller bearing retainer of FIG. It is a top view of the assembly apparatus of the roller bearing retainer of FIG. It is a top view of the assembly apparatus of the roller bearing retainer of FIG. It is a top view which shows the roller bearing retainer assembled by the assembly apparatus of the roller bearing retainer of FIG. It is BB sectional drawing of FIG. It is a principal part enlarged view of the cage for roller bearings of FIG. It is CC sectional drawing of FIG. It is CC sectional drawing of FIG. It is a side view which shows the pin of the cage for roller bearings of FIG. It is a top view which shows the shim member of the cage for roller bearings of FIG. It is DD sectional drawing of FIG. It is a side view which shows the assembly apparatus of the roller bearing retainer of FIG. It is a top view which shows the roller bearing retainer assembled by the assembly apparatus of the roller bearing retainer of FIG. It is EE sectional drawing of FIG. It is a side view which shows the assembly apparatus of the roller bearing retainer of FIG. It is a top view which shows the roller bearing retainer assembled by the assembly apparatus of the roller bearing retainer of FIG. It is GG sectional drawing of FIG. It is a side view which shows the assembly apparatus of the roller bearing retainer of FIG. It is a top view which shows the roller bearing retainer assembled by the assembly apparatus of the roller bearing retainer of FIG. It is HH sectional drawing of FIG. It is a side view which shows the assembly apparatus of the roller bearing retainer of FIG. It is principal part sectional drawing which shows the pin type rolling bearing currently disclosed by patent document 1. FIG.

Explanation of symbols

1 Roller bearing cage (cylindrical roller bearing cage)
2 annular side plate (upper annular side plate)
3 annular side plate (lower annular side plate)
2a, 3a Pin press-fitting hole 4 Roller (cylindrical roller)
4a Through-hole 5 Pin 10 Roller bearing cage assembly device 20 Workpiece mounting table 21 Work support roller 21a Rolling shaft 22 Magnet holder 23 Roller base 30 Pin press-fitting means (pin press-fitting mechanism)
31 Caster 32 Base 35 C-type block 36 Shaft 38 Upper arm portion 39 Upper press-fit jig 40 Actuator 41 Lower arm portion 42 Lower press-fit jig 43 Shim member 60 Roller bearing cage (Cylinder roller bearing cage)
70 Roller bearing cage (conical roller bearing cage)
80 Roller bearing cage (Conical roller bearing cage)
90 Roller bearing cage (conical roller bearing cage)
F Pin press-fit direction

Claims (8)

An assembly device for a roller bearing retainer, in which a plurality of rollers of a roller bearing are rotatably supported via pins between a pair of opposed annular side plates,
A work mounting table for mounting each annular side plate and rollers;
Provided separately from the workpiece mounting table, and provided with pin press-fitting means for pressing the respective pins through the rollers from the one annular side plate side mounted on the workpiece mounting table to the other annular side plate side. An assembly apparatus for a roller bearing retainer.   2. The roller bearing retainer assembling apparatus according to claim 1, wherein the pin press-fitting means is displaceable along a pin press-fitting direction.   The pin press-fitting means is disposed on one annular side plate side, and a first press-fitting jig for press-fitting the pin, and a second press-fitting treatment disposed on the other annular side plate side and receiving a pin press-fitting load by the first press-fitting jig. The roller bearing retainer assembling apparatus according to claim 1, wherein the roller bearing retainer assembling apparatus is composed of a tool.   4. The roller bearing retainer assembling apparatus according to claim 2, wherein the pin press-fitting means is swingable about an axis along a direction substantially orthogonal to the pin press-fitting direction.   In the workpiece mounting table, three or more workpiece support members that can roll on the workpiece mounting table are arranged so that the rolling shaft extends along the radial direction from the center of the workpiece mounting table. The roller bearing retainer assembling apparatus according to claim 1, 2, 3, or 4, wherein each annular side plate is supported so as to be movable in an annular direction of the annular side plate on the workpiece mounting table.   6. The roller bearing cage assembling apparatus according to claim 5, wherein each of the workpiece support members can be arbitrarily changed in arrangement and number on the workpiece mounting table. A method for assembling a roller bearing retainer in which a plurality of rollers of a roller bearing are sandwiched between a pair of opposed annular side plates via respective pins so as to be freely rollable,
A pin press-fitting means presses a pin through each roller from the side of one annular side plate placed on the workpiece mounting table to the other side of the annular side plate. A roller bearing retainer assembling method characterized by securing a predetermined gap between the annular side plate and each roller by interposing a shim member on the pin and then extracting the shim member after press-fitting the pin.   The roller bearing retainer assembling method according to claim 7, wherein the thickness of the shim member is smaller than an appropriate value of a gap between the annular side plate and each roller.

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